| Patents for H04J 14 - Optical multiplex systems (27,009) |
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| 09/08/1999 | CN1228220A Optical transmission systems using optical amplifiers and wavelength division multiplexing |
| 09/07/1999 | US5949925 Method, device, and system for optical modulation in wavelength division multiplexing |
| 09/07/1999 | US5949580 Multipole light switch or multiplexer using rotator and interferometer |
| 09/07/1999 | US5949563 Wavelength division multiplexing transmitter receiver, optical transmission system, and redundant system switching method |
| 09/07/1999 | US5949562 Transmission wavelength control method permitting efficient wavelength multiplexing, optical communication method, optical transmitter, optical transmitter-receiver apparatus, and optical communication system |
| 09/07/1999 | CA2181811C Wdm network with control wavelength |
| 09/07/1999 | CA2059587C Fiber optic rf signal channelizer |
| 09/03/1999 | CA2264313A1 Method of transmitting data, corresponding communication system and telecommunication network |
| 09/02/1999 | WO1999044320A1 System and method for demultiplexing in optical communication systems |
| 09/02/1999 | WO1999044317A2 Protection of wdm-channels |
| 09/02/1999 | WO1999044298A2 Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems |
| 09/01/1999 | EP0939509A2 Wavelength division multiplexing optical transmission system |
| 09/01/1999 | CN1227446A Channel monitoring apparatus in wavelength division multiplexing system |
| 08/31/1999 | US5946430 To an optical transmission line |
| 08/31/1999 | US5946119 Wavelength division multiplexed system employing optimal channel modulation |
| 08/31/1999 | US5946117 Optical soliton telecommunication system with dispersion-shifted optical fibre |
| 08/26/1999 | WO1999043119A1 Sagnac interferometer amplitude modulator based demultiplexer |
| 08/26/1999 | WO1999043118A1 Dense wdm in the 1310nm band |
| 08/26/1999 | WO1999043117A2 Upgradable, gain flattened fiber amplifiers for wdm applications |
| 08/26/1999 | WO1999043116A1 Method, apparatus, and computer program product for optical network restoration |
| 08/26/1999 | WO1999043112A1 Method and apparatus for byte-by-byte multiplexing of data over parallel communication links |
| 08/26/1999 | WO1999043108A1 Hybrid analog/digital wdm access network with mini-digital optical node |
| 08/26/1999 | WO1999042893A1 Tunable optical add/drop multiplexer |
| 08/26/1999 | WO1999042875A1 Cascading of tunable optical filter elements |
| 08/26/1999 | CA2324417A1 Tunable optical add/drop multiplexer |
| 08/26/1999 | CA2321500A1 Dense wdm in the 1310nm band |
| 08/26/1999 | CA2320872A1 Upgradable, gain flattened fiber amplifiers for wdm applications |
| 08/26/1999 | CA2320083A1 Cascading of tunable optical filter elements |
| 08/25/1999 | EP0938244A2 Optical wavelength multiplexing system having a redundant configuration |
| 08/25/1999 | EP0938205A2 Optical multiplexor/demultiplexor |
| 08/25/1999 | EP0938197A2 High capacity chirped-pulse wavelength-division multiplexed communication method and apparatus |
| 08/25/1999 | EP0938169A2 Hight power multiwavelength light source |
| 08/25/1999 | EP0937347A1 Dense wdm optical multiplexer and demultiplexer |
| 08/25/1999 | EP0937346A1 Programmable wavelength router |
| 08/25/1999 | EP0937344A2 Inter-ring cross-connect for survivable multi-wavelength optical communication networks |
| 08/24/1999 | US5943162 Optical amplifier, optical amplifying method and optical transmission system using the optical amplifier |
| 08/24/1999 | US5943150 Massively parallel processor networks with optical express channels |
| 08/24/1999 | US5943149 Optical multiplexor/demultiplexor using a narrow band filter followed by a wideband filter |
| 08/24/1999 | US5943148 Surveillance system of a multi-wavelength ring network |
| 08/24/1999 | US5943147 Telecommunication system and method for wavelength-division multiplexing transmissions with a controlled separation of the outgoing channels and capable of determining the optical signal/noise ratio |
| 08/24/1999 | US5943146 Optical transmission system in which no arrival of a first light signal is notified from a first station to a second station by an alarm light signal multiplexed with a second light signal in wavelength |
| 08/24/1999 | CA2172431C Output light wavelength control method in optical communication system for transmitting optical signal output from optical transmitter, optical transmitter and optical transmitter/receiver used in the optical communication system, and optical communication system using the same |
| 08/19/1999 | WO1999041870A1 Self-synchronization of an optical packet network using seed pulses extracted from within the packets |
| 08/19/1999 | WO1999041869A1 Wdm ring transmission system having reduced adjacent channel cross-talk |
| 08/19/1999 | WO1999041858A1 Multiplexer and demultiplexer for single mode optical fiber communication links |
| 08/19/1999 | WO1999041857A2 Optical telecommunications network |
| 08/19/1999 | WO1999041855A2 Optical transmission system with a receiver using full optical clock recovery |
| 08/19/1999 | WO1999041640A1 Device for switching and scanning clocked optical data signals |
| 08/19/1999 | DE19808943C1 Optical fibre data transmission method |
| 08/19/1999 | DE19805413A1 Vorrichtung zum Schalten und Abtasten von getakteten optischen Datensignalen Device for switching and scanning clocked optical data signals |
| 08/19/1999 | CA2319953A1 Apparatus for switching and scanning of clocked optical data |
| 08/19/1999 | CA2319412A1 Multiplexer and demultiplexer for single mode optical fiber communication links |
| 08/19/1999 | CA2318484A1 Self-synchronization of an optical packet network using seed pulses extracted from within the packets |
| 08/18/1999 | EP0936771A2 Optical signal translator unit |
| 08/18/1999 | EP0936770A2 Wavelenght-division-mutliplexing optical communication apparatus |
| 08/18/1999 | EP0936769A2 Wavelength-multiplexed optical transmission system |
| 08/18/1999 | EP0936768A2 Optical wavelength multiplex device with add drop multiplexer |
| 08/18/1999 | EP0936761A1 Wavelength division multiplexing optical transmission system |
| 08/18/1999 | EP0936760A2 Optical transmission system and method of surveying the same |
| 08/18/1999 | EP0936759A2 Optical transmission system, end terminal and optical receiver |
| 08/18/1999 | CA2262248A1 Long reach delivery of broadcast services using broadband optical sources and pre-compensation of dispersion |
| 08/17/1999 | US5940568 Planar optical waveguide, planar optical waveguide with Bragg grating, and method of fabricating such a planar optical waveguide |
| 08/17/1999 | US5940551 Optical NxN wavelength crossconnect |
| 08/17/1999 | US5940205 Channel counter and method of controlling an optical output level with same |
| 08/17/1999 | US5940197 Optical add-drop device |
| 08/17/1999 | US5940196 Optical communications system with wavelength division multiplexing |
| 08/17/1999 | US5938309 Bit-rate transparent WDM optical communication system with remodulators |
| 08/12/1999 | WO1999040700A1 Wdm ring having an optical service channel |
| 08/12/1999 | WO1999040697A1 Virtual star network |
| 08/12/1999 | WO1999040695A1 Optical amplifier, method for controlling excitation light source in optical amplifier, and method for controlling the optical amplifier |
| 08/12/1999 | DE19801223A1 Method of deriving microwave or millimeter wave subcarrier signals independent of the dispersion of the optical transmission path in an optical multiplex system |
| 08/11/1999 | EP0935358A2 Bi-directional configurable optical add/drop circuit |
| 08/11/1999 | EP0935356A2 System for monitoring a digital bidirectional optical communication line |
| 08/11/1999 | EP0935355A2 A system and method for monitoring and characterizing optical links |
| 08/11/1999 | EP0935320A1 Optical amplifier |
| 08/11/1999 | EP0643888B1 Optical communication system |
| 08/10/1999 | US5937116 Optical transmission system and method using wavelength division multiplex |
| 08/10/1999 | US5936759 Arrangement for shifting optical images between individual channels |
| 08/10/1999 | US5936753 Optical network system |
| 08/06/1999 | CA2261257A1 Optical amplifier for constantly adjusting per-channel output power and method thereof |
| 08/06/1999 | CA2260687A1 Bi-directional configurable optical add/drop circuit |
| 08/05/1999 | WO1999039470A1 Connection set-up and path assignment in wavelength division multiplexed ring networks |
| 08/05/1999 | WO1999021316A9 Remodulators for wdm optical communication systems |
| 08/04/1999 | EP0933895A1 Method for detecting one or more free channels in an optical time multiplexed signal, a device for implementation and an application of the device |
| 08/04/1999 | EP0933894A1 Method and system for controlling optical amplification in wavelength division multiplex optical transmission |
| 08/04/1999 | EP0933888A2 Optical gain equalization unit, optical gain equalization method, and optical fiber transmission line |
| 08/04/1999 | CN1224849A Band dividing and sharing method and device |
| 08/03/1999 | US5933270 For an optical transmission line |
| 08/03/1999 | US5933262 Optical amplification device and wavelength multiplexed light transfer apparatus using the same |
| 08/03/1999 | US5933260 Method and system for wavelength division multiplexer |
| 08/03/1999 | US5933259 Remotely disposed high speed switches for high speed connection between computers and peripheral devices |
| 08/03/1999 | US5933258 Optical communication system |
| 08/02/1999 | CA2258970A1 Process for detecting one or more free channels in an optical time division multiplex, an implementation device and an application of the device |
| 07/29/1999 | WO1999038348A1 Wavelength-selective optical add/drop using tilting micro-mirrors |
| 07/28/1999 | EP0932060A2 Selectable wavelength channel filter for optical WDM systems |
| 07/28/1999 | EP0931393A1 Dynamically reconfigurable optical add-drop multiplexers for wdm optical communication systems |
| 07/28/1999 | EP0931370A1 Lossless optical transmission system architecture |
| 07/27/1999 | US5930016 Upgradable modular wavelength division multiplexer |
| 07/27/1999 | US5930015 Optical access system |
| 07/27/1999 | US5930014 Network system having node devices connected therebetween, node device used in the network system, and communication method utilized in the network system |